diff --git a/quotaclimat/data_processing/mediatree/detect_keywords.py b/quotaclimat/data_processing/mediatree/detect_keywords.py
index a5baa28c..55c5a9fd 100644
--- a/quotaclimat/data_processing/mediatree/detect_keywords.py
+++ b/quotaclimat/data_processing/mediatree/detect_keywords.py
@@ -265,7 +265,9 @@ def filter_and_tag_by_theme(df: pd.DataFrame) -> pd.DataFrame :
 def add_primary_key(row):
     logging.info(f"Adding primary key to save to PG and have idempotent results")
     try:
-        return get_consistent_hash(str(row["start"].timestamp()) + row["channel_name"])
+        hash_id = get_consistent_hash(str(row["start"]) + row["channel_name"])
+        logging.debug(f"hash_id {hash_id}")
+        return hash_id
 
     except (Exception) as error:
         logging.error(f"{error} with df {row}")